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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "oat_file.h"
#include <dlfcn.h>
#include <string>
#include "common_runtime_test.h"
#include "dexopt_test.h"
#include "gtest/gtest.h"
#include "scoped_thread_state_change-inl.h"
#include "vdex_file.h"
namespace art HIDDEN {
class OatFileTest : public DexoptTest {};
TEST_F(OatFileTest, LoadOat) {
std::string dex_location = GetScratchDir() + "/LoadOat.jar";
Copy(GetDexSrc1(), dex_location);
GenerateOatForTest(dex_location.c_str(), CompilerFilter::kSpeed);
std::string oat_location;
std::string error_msg;
ASSERT_TRUE(OatFileAssistant::DexLocationToOatFilename(
dex_location, kRuntimeISA, &oat_location, &error_msg))
<< error_msg;
std::unique_ptr<OatFile> odex_file(OatFile::Open(/*zip_fd=*/-1,
oat_location,
oat_location,
/*executable=*/false,
/*low_4gb=*/false,
dex_location,
&error_msg));
ASSERT_TRUE(odex_file.get() != nullptr);
// Check that the vdex file was loaded in the reserved space of odex file.
EXPECT_EQ(odex_file->GetVdexFile()->Begin(), odex_file->VdexBegin());
}
TEST_F(OatFileTest, ChangingMultiDexUncompressed) {
std::string dex_location = GetScratchDir() + "/MultiDexUncompressedAligned.jar";
Copy(GetTestDexFileName("MultiDexUncompressedAligned"), dex_location);
GenerateOatForTest(dex_location.c_str(), CompilerFilter::kVerify);
std::string oat_location;
std::string error_msg;
ASSERT_TRUE(OatFileAssistant::DexLocationToOatFilename(
dex_location, kRuntimeISA, &oat_location, &error_msg))
<< error_msg;
// Ensure we can load that file. Just a precondition.
{
std::unique_ptr<OatFile> odex_file(OatFile::Open(/*zip_fd=*/-1,
oat_location,
oat_location,
/*executable=*/false,
/*low_4gb=*/false,
dex_location,
&error_msg));
ASSERT_TRUE(odex_file != nullptr);
ASSERT_EQ(2u, odex_file->GetOatDexFiles().size());
}
// Now replace the source.
Copy(GetTestDexFileName("MainUncompressedAligned"), dex_location);
// And try to load again.
std::unique_ptr<OatFile> odex_file(OatFile::Open(/*zip_fd=*/-1,
oat_location,
oat_location,
/*executable=*/false,
/*low_4gb=*/false,
dex_location,
&error_msg));
EXPECT_TRUE(odex_file == nullptr);
EXPECT_NE(std::string::npos, error_msg.find("expected 2 uncompressed dex files, but found 1"))
<< error_msg;
}
TEST_F(OatFileTest, DlOpenLoad) {
std::string dex_location = GetScratchDir() + "/LoadOat.jar";
Copy(GetDexSrc1(), dex_location);
GenerateOatForTest(dex_location.c_str(), CompilerFilter::kSpeed);
std::string oat_location;
std::string error_msg;
ASSERT_TRUE(OatFileAssistant::DexLocationToOatFilename(
dex_location, kRuntimeISA, &oat_location, &error_msg))
<< error_msg;
// Clear previous errors if any.
dlerror();
error_msg.clear();
std::unique_ptr<OatFile> odex_file(OatFile::Open(/*zip_fd=*/-1,
oat_location,
oat_location,
/*executable=*/true,
/*low_4gb=*/false,
dex_location,
&error_msg));
ASSERT_NE(odex_file.get(), nullptr) << error_msg;
#ifdef __GLIBC__
if (!error_msg.empty()) {
// If a valid oat file was returned but there was an error message, then dlopen failed
// but the backup ART ELF loader successfully loaded the oat file.
// The only expected reason for this is a bug in glibc that prevents loading dynamic
// shared objects with a read-only dynamic section:
// https://sourceware.org/bugzilla/show_bug.cgi?id=28340.
ASSERT_TRUE(error_msg == "DlOpen does not support read-only .dynamic section.") << error_msg;
GTEST_SKIP() << error_msg;
}
#else
// If a valid oat file was returned with no error message, then dlopen was successful.
ASSERT_TRUE(error_msg.empty()) << error_msg;
#endif
const char *dlerror_msg = dlerror();
ASSERT_EQ(dlerror_msg, nullptr) << dlerror_msg;
// Ensure that the oat file is loaded with dlopen by requesting information about it
// using dladdr.
Dl_info info;
ASSERT_NE(dladdr(odex_file->Begin(), &info), 0);
EXPECT_STREQ(info.dli_fname, oat_location.c_str())
<< "dli_fname: " << info.dli_fname
<< ", location: " << oat_location;
EXPECT_STREQ(info.dli_sname, "oatdata") << info.dli_sname;
}
} // namespace art
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